code: def Label(label: str):
      """Create an EdgeModifier that sets a human-readable label on the edge."""
      return EdgeModifier(label=label)
  
file_path: airflow/airflow/utils/edgemodifier.py
imports: from __future__ import annotations
  from typing import Sequence
  from airflow.models.taskmixin import DAGNode, DependencyMixin
  from airflow.utils.task_group import TaskGroup
label_desc: Use image node_id 1 for calling a global function with example usage: Label(label) and returns: EdgeModifier